public class DemoSingleton implements Serializable { private static final long serialVersionUID = 1L; private DemoSingleton() { // private constructor } private static class DemoSingletonHolder { public static final DemoSingleton INSTANCE = new DemoSingleton(); } public static DemoSingleton getInstance(...
package com.howtodoinjava.demo; import java.util.HashMap; import java.util.Map; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.Bean; import org.springframework.core.Ordered; import org.s...
Implement Lazy Initialization in Java A getter method checks whether a private member has some value already. If it has, the function returns it; else, it creates a new instance and returns it for the first time execution. There are two methods to do lazy initialization. ...
In this Java tutorial, you will learn How to Find Maximum Occurrence of Words from given Text File? Here is a logic for getting top element: Create a
How to Sort a HashMap by Key and Value in Java 8 – Complete Tutorial Java Thread State Introduction with Example – Life Cycle of a Thread Implement Simple Threadsafe Cache using HashMap without using Synchronized Collection In Java How to Set and Get Thread Priority? Get Thread ID, Count,...
How to implement reverse-lookup in enum? What is EnumMap and EnumSet? 1.12.Java Serialization and Serializable Interface Suppose you are preparing for a Java interview with a Telecom company or any such domain that uses serialization in their application flows. In that case, you will highly bene...
C# Singleton C# Socket programming, multiple threads and sockets how manage there resources ? C# Socket unable to write data to transport connection C# Socket.IOControl ignoring keepAliveTime / KeepAliveInterval configuration C# specify array size in method parameter C# split string (",") --error...
How to implement a System Services? "What does Android system development do?" wrote that Android System Services is a modular component focusing on specific functions. The functions provided by the application framework API can communicate with system services to access the underlying hardware. How ...
This tutorial can easily help us implement the DependencyService on Xamarin.Forms.The process for using the DependencyService to invoke native platform functionality:Create an interface for the native platform functionality in shared code. Implement the interface in the platform projects and register the ...
Note An article on the Singleton pattern entitled "The Singleton Pattern" can be found in the accompanying ZIP file. 注意:在附带的ZIP文件中可以找到一篇关于单例模式的文章,标题为“单例模式”。 For example, to use StringManager from a class in the ex03.pyrmont.connector.http package, pass the...